摘要
开发了基于矢量有限元法的谐振腔通用计算模拟器。该模拟器包括前处理、有限元求解和后处理三部分。首先在前处理中进行三维实体建模和网格剖分,然后采用有限元方法生成矩阵并求解该矩阵,在后处理中计算谐振腔的任意本征频率,Q值及电磁场分布。通过分别对几种不同介质包括各向异性介质加载下的谐振腔进行仿真求解,并将计算结果与商业电磁仿真软件HFSS进行对比,验证了模拟器的可行性以及仿真谐振腔的通用性。
A universal computing simulator for resonant cavity has been developed, based on the vector finite-element method. This simulator includes pre-process, solution by finite element methods and post- process. Firstly, at the pre-process, the model is built and the meshes are produced. Then the matrix is established by FEM and gets solution. At the post-process, we get the cavity＇s eigen frequency of any mode, the quality factor and its electromagnetic distribution. Several shaped resonant cavities have been simulated, filled with different materials including anisotropic dielectric. By comparing the results with HFSS, the feasibility of the simulator and its universality have been proved.
出处
《真空电子技术》
2009年第6期34-37,共4页
Vacuum Electronics
关键词
矢量有限元法
谐振腔
各向异性介质
模拟器
Vector finite-element method
Resonant cavity
Anisotropic dielectric
Simulator
